NDLI: Change scheduling based on business impact analysis of change-related risk

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Change scheduling based on business impact analysis of change-related risk

Content Provider	IEEE Xplore Digital Library
Author	Setzer, T. Bhattacharya, K. Ludwig, H.
Copyright Year	2004
Abstract	In today's enterprises, the alignment of IT service infrastructures to continuously changing business requirements is a key cost driver, all the more so as most severe service disruptions can be attributed to the introduction of changes into the IT service infrastructure. Change management is a disciplined process for introducing required changes with minimum business impact. Considering the number of business processes in an enterprise and the complexity of the dependency network of processes to invoked services, one of the most pressing problems in change management is the risk-aware prioritization and scheduling of vast numbers of service changes. In this paper we introduce a model for estimating the business impact of operational risk resulting from changes. We determine the business impact based on the number and types of business process instances affected by a change-related outage and quantify the business impact in terms of financial loss. The model takes into account the network of dependencies between processes and services, probabilistic change-related downtime, uncertainty in business process demand, and various infrastructural characteristics. Based on the analytical model, we derive decision models aimed at scheduling single or multiple correlated changes with the lowest expected business impact. The models are evaluated using simulations based on industry data.
File Size	837584
File Format	PDF
ISSN	19324537
Volume Number	7
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Risk analysis Risk management Job shop scheduling Costs Pressing Uncertainty Analytical models Legislation Informatics Software libraries Business impact analysis, change management, change scheduling, risk management, service networks, service transition management
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering

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